A female four month old Labrador retriever puppy presented to Cornell University Hospital for Animals (CUHA) Soft Tissue Surgery service for evaluation of urinary incontinence. She had a history of positional urine leakage for her entire life. Physical examination revealed no significant abnormalities beyond incontinence. Urinalysis showed a severe urinary tract infection. An abdominal ultrasound revealed a dilated, fluid filled right kidney and ureter. The right ureter appeared to enter the bladder normally but a ureterocele within the urinary bladder was visualized. Cystoscopy was performed and showed the right ureter entering the distal urethra and a septal band remnant at the external urethral orifice. The dog was taken to surgery and a right ureteronephrectomy as well as a cystotomy were done. Post operatively, the dog received antibiotics and her urinary tract infection resolved. Although the puppy remained incontinent at night two months after surgery, she did not have dribbling during the day and her quality of life was improved.